挑战习题
1/5单选题
难度:

1.

有理数a,b,c在数轴上对应的点如图所示,化简|b+a|+|a+c|+|c-b|的结果是(  )




A

2b-2c

B

2c-2b

C

2b

D

-2c

提示1:
PHA+5YWI5qC55o2u5ZCE54K55Zyo5pWw6L205LiK55qE5L2N572u5Yik5pat5Ye6YeOAgWLjgIFj44CBZOeahOespuWPt++8jOWGjeagueaNrue7neWvueWAvOeahOaAp+i0qOWOu+aOiee7neWvueWAvOespuWPt+WNs+WPrzwvcD4=
正确答案:QQ==
PGRpdj48cCBhbGlnbj0ibGVmdCI+6Kej77ya55Sx5Zu+5Y+v55+l77yaPGJyPmPvvJxi77ycMO+8nGHvvIwtY++8nmHvvIwtYu+8nGHvvIw8YnI+4oi0YSti77yeMO+8jGErY++8nDDvvIxjLWLvvJwwPGJyPuKItHxiK2F8K3xhK2N8K3xjLWJ8PWErYi1hLWMrYi1jPTJiLTJjPC9wPjwvZGl2Pg==